package com.wpw.dream.base;

import java.util.HashMap;
import java.util.Map;

public class FinalTest {
	
	public static void main(String[] args) {
		final Map<Integer, Integer> map = new HashMap<>();
		System.out.println(map);
		
		map.put(1, 1);
		map.put(2, 2);
		System.out.println(map);
		
	}

}
